按推荐建议，继续执行

结论：将 vendored LinuxCNC 轨迹规划器、cruckig、posemath 源文件纳入直接编译探针，并通过 native 验证，继续确保核心功能来源于 LinuxCNC 源程序。

wasm-port/docs/porting-steps-standalone.md

@@ -459,6 +459,14 @@ Current verified progress:
   `rs274ngc_pre.cc`. `rs274ngc_pre.cc` is compiled with the existing
   standalone `UNIT_TEST`/`LINUXCNC_STANDALONE_USE_RS274_PRE_STATE` boundary
   that isolates Python runtime integration from the browser simulation core.
+- `tools/build_native_probes.sh` now includes direct source compile probes
+  for the vendored LinuxCNC trajectory-planner and posemath files used by
+  `linuxcnc_tp_api_probe`: `tp.c`, `tc.c`, `tcq.c`, `spherical_arc.c`,
+  `blendmath.c`, `sp_scurve.c`, `ruckig_wrapper.c`, the selected
+  `cruckig/*.c` sources, `emcpose.c`, `posemath.cc`, `_posemath.c`, and
+  `sincos.c`. These probes use the same `TP_FLAGS` as the standalone TP
+  harness, including the existing `-fpermissive` boundary required by
+  upstream enum conversions in `tp.c`.
 
 ## Phase 4: Port INI Parsing Without Editing Upstream